55 lines
1.8 KiB
Objective-C
55 lines
1.8 KiB
Objective-C
//
|
|
// NSURLConnection+RACSupport.m
|
|
// ReactiveObjC
|
|
//
|
|
// Created by Justin Spahr-Summers on 2013-10-01.
|
|
// Copyright (c) 2013 GitHub, Inc. All rights reserved.
|
|
//
|
|
|
|
#import "NSURLConnection+RACSupport.h"
|
|
#import "RACDisposable.h"
|
|
#import "RACSignal.h"
|
|
#import "RACSubscriber.h"
|
|
#import "RACTuple.h"
|
|
|
|
@implementation NSURLConnection (RACSupport)
|
|
|
|
+ (RACSignal *)rac_sendAsynchronousRequest:(NSURLRequest *)request {
|
|
NSCParameterAssert(request != nil);
|
|
|
|
return [[RACSignal
|
|
createSignal:^(id<RACSubscriber> subscriber) {
|
|
NSOperationQueue *queue = [[NSOperationQueue alloc] init];
|
|
queue.name = @"org.reactivecocoa.ReactiveObjC.NSURLConnectionRACSupport";
|
|
#pragma clang diagnostic push
|
|
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
|
|
[NSURLConnection sendAsynchronousRequest:request queue:queue completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) {
|
|
// The docs say that `nil` data means an error occurred, but
|
|
// `nil` responses can also occur in practice (circumstances
|
|
// unknown). Consider either to be an error.
|
|
//
|
|
// Note that _empty_ data is not necessarily erroneous, as there
|
|
// may be headers but no HTTP body.
|
|
if (response == nil || data == nil) {
|
|
[subscriber sendError:error];
|
|
} else {
|
|
[subscriber sendNext:RACTuplePack(response, data)];
|
|
[subscriber sendCompleted];
|
|
}
|
|
}];
|
|
#pragma clang diagnostic pop
|
|
|
|
return [RACDisposable disposableWithBlock:^{
|
|
// It's not clear if this will actually cancel the connection,
|
|
// but we can at least prevent _some_ unnecessary work --
|
|
// without writing all the code for a proper delegate, which
|
|
// doesn't really belong in RAC.
|
|
queue.suspended = YES;
|
|
[queue cancelAllOperations];
|
|
}];
|
|
}]
|
|
setNameWithFormat:@"+rac_sendAsynchronousRequest: %@", request];
|
|
}
|
|
|
|
@end
|